Nice to see you, brocillini.
I see someone's quite motivated by the female anatomy.
If you want to hone your skills, you need to look at the actual human bodies and muscle systems.
Even sexy drawings need accurate details to be sexy.
You'd be surprised at how many details of the body that at first wouldn't seem to make it sexier, but you need to embrace the non-sexual details to bring out the sexual ones.
No, let me correct that. To really be a master at this, all of it needs to be sexy to you. From the ribs, to the elbows, to the jawline, to the ears, to the knees, and so on.
I look massively forward to your future drawings and animations.